Fiber optic chemical sensor using fiber coupler probe based on intensity modulation for alcohol detection

• Main Authors: Yasin, Moh, Harun, Sulaiman Wadi, Tan, C.F., Phang, Sook Wai, Ahmad, Harith
• Format: Article
• Published: John Wiley & Sons 2011
• Subjects: QC Physics; TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.um.edu.my/19861/; https://doi.org/10.1002/mop.26124

A simple intensity modulation based displacement sensor using fiber optic coupler probe is proposed and demonstrated for sensing the concentration of alcohol solution. The intensity of light reduces almost linearly with the displacement and the sensitivity of the curve is dependent on the concentrat...